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xmz7891
b705216e4a
琚帶绔?- 淇 MTU 闂锛氬す MSS + 璺緞 MTU 鎺㈡祴锛堝叕缃戝彲鐢ㄧ巼 48% -> 100%锛?- 澶嶇敤 HTTP 杩炴帴锛堝厤鎺夋瘡娆℃柊寤?TLS 鐨?30% 鎻℃墜澶辫触锛?- 姣忓垎閽熷洖澶存壘灞€鍩熺綉锛岃嚜鍔ㄥ垏鍥炲揩 400 鍊嶇殑璺緞 - 鐢婚潰蹇冭烦甯э細闈欐鏃剁渷娴侀噺锛屽鎴风浠嶇煡閬撴祦鏄椿鐨?- 閿佸睆鏃剁粰鍑哄彲鎿嶄綔鐨勬彁绀? 鎵嬭〃绔?- 鍐呯疆 GTS Root R4 / GlobalSign Root CA锛屼慨 SSLHandshakeException - 杩炴帴閿欒缈昏瘧鎴愪汉璇濓紙璇佷功/鏃堕棿/瑙ｆ瀽/瓒呮椂鍒嗗埆鎻愮ず锛?- 缁忎腑杞繛涓婂悗鐢ㄦ湇鍔″櫒鎶ョ殑鍦板潃鍒锋柊宸查厤瀵硅褰?- 鏂板灞€鍩熺綉杩炴帴椤甸潰銆佹湇鍔″櫒寤惰繜妫€娴? 鏈嶅姟鍣ㄧ - 鏀寔 chunked 璇锋眰浣擄紙淇瘡 16 绉掍竴娆＄殑杩炴帴閿欎贡涓庡ぇ闈㈢Н 502锛?- 缃戠粶璋冧紭鑴氭湰 net-tune.sh锛堝紑鏈鸿嚜鍔ㄥ簲鐢級 - 绠＄悊椤碉細鎵归噺鍒犻櫎銆佺綉缁滀綋妫€銆佷笅杞藉尯 - 闅ч亾鏀?HTTP/2 + 鍙岃繛鎺? 鏂囨。 - 璁稿彲鍗忚 / 瀹夎鍓嶅繀璇?/ 瀹夎鍚庨』鐭ワ紙浣滆€咃細灏忛害瀛愶級
112 lines
3.9 KiB
Bash
112 lines
3.9 KiB
Bash
#!/bin/bash
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# MSS 值扫描：1360 可能不是最优。
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#
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# 现状：MTU 修复后 15 分钟长测 78%（最长连续失败从 68 秒降到 15 秒）。
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# 失败是孤立单次超时，不是持续中断。
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# MSS 夹多少最合适需要实测 —— 夹太小包变小、来回变多；
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# 夹太大又超出路径能过的尺寸。
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set -u
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URL=https://relay.xxmxxs.top
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RELAY_DIR=/root/lanremote-relay
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PROBE=24
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clear_mss() {
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for chain in OUTPUT POSTROUTING; do
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while iptables -t mangle -C "$chain" -p tcp --tcp-flags SYN,RST SYN \
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-j TCPMSS --set-mss 1360 2>/dev/null; do
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iptables -t mangle -D "$chain" -p tcp --tcp-flags SYN,RST SYN \
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-j TCPMSS --set-mss 1360 2>/dev/null || break
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done
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while iptables -t mangle -C "$chain" -p tcp --tcp-flags SYN,RST SYN \
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-j TCPMSS --set-mss 1300 2>/dev/null; do
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iptables -t mangle -D "$chain" -p tcp --tcp-flags SYN,RST SYN \
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-j TCPMSS --set-mss 1300 2>/dev/null || break
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done
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while iptables -t mangle -C "$chain" -p tcp --tcp-flags SYN,RST SYN \
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-j TCPMSS --set-mss 1400 2>/dev/null; do
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iptables -t mangle -D "$chain" -p tcp --tcp-flags SYN,RST SYN \
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-j TCPMSS --set-mss 1400 2>/dev/null || break
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done
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while iptables -t mangle -C "$chain" -p tcp --tcp-flags SYN,RST SYN \
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-j TCPMSS --set-mss 1440 2>/dev/null; do
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iptables -t mangle -D "$chain" -p tcp --tcp-flags SYN,RST SYN \
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-j TCPMSS --set-mss 1440 2>/dev/null || break
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done
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done
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}
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set_mss() {
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local value="$1"
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clear_mss
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if [ "$value" != "0" ]; then
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for chain in OUTPUT POSTROUTING; do
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iptables -t mangle -A "$chain" -p tcp --tcp-flags SYN,RST SYN \
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-j TCPMSS --set-mss "$value" 2>/dev/null
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done
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fi
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}
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measure() {
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local ok=0 bad=0 consec=0 maxconsec=0
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for i in $(seq 1 $PROBE); do
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c=$(timeout 12 curl -4 -s -o /dev/null -w '%{http_code}' \
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-H 'User-Agent: LanRemote/1.4.0' "$URL/v1/health" 2>/dev/null)
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c=${c:-000}
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if [ "$c" = "200" ]; then
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ok=$((ok+1)); consec=0
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else
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bad=$((bad+1)); consec=$((consec+1))
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[ "$consec" -gt "$maxconsec" ] && maxconsec=$consec
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fi
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sleep 2
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done
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echo "$ok|$maxconsec"
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}
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: > /root/mss_result.txt
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for mss in 0 1300 1360 1400 1440; do
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label=$( [ "$mss" = "0" ] && echo "不夹(1500)" || echo "MSS $mss" )
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set_mss "$mss"
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# 让新参数生效：重启隧道
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systemctl restart lanremote-tunnel >/dev/null 2>&1
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sleep 30
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result=$(measure)
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ok=$(echo "$result" | cut -d'|' -f1)
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mc=$(echo "$result" | cut -d'|' -f2)
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pct=$((ok * 100 / PROBE))
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printf " %-12s 可用 %2d/%d = %3d%% 最长连续失败 %s 次\n" \
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"$label" "$ok" "$PROBE" "$pct" "$mc"
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echo "$label|$pct|$mc" >> /root/mss_result.txt
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done
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echo
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echo "===== 汇总（按可用率排序）====="
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sort -t'|' -k2 -rn /root/mss_result.txt | while IFS='|' read -r label pct mc; do
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printf " %-12s %3d%% (最长连败 %s)\n" "$label" "$pct" "$mc"
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done
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BEST=$(sort -t'|' -k2 -rn /root/mss_result.txt | head -1)
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BEST_LABEL=$(echo "$BEST" | cut -d'|' -f1)
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BEST_PCT=$(echo "$BEST" | cut -d'|' -f2)
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echo
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echo " 最优：$BEST_LABEL（$BEST_PCT%）"
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# 恢复成最优值
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case "$BEST_LABEL" in
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"不夹(1500)") FINAL=0 ;;
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"MSS 1300") FINAL=1300 ;;
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"MSS 1360") FINAL=1360 ;;
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"MSS 1400") FINAL=1400 ;;
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"MSS 1440") FINAL=1440 ;;
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*) FINAL=1360 ;;
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esac
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set_mss "$FINAL"
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if [ "$FINAL" != "0" ]; then
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sed -i "s/^MSS_VALUE=.*/MSS_VALUE=$FINAL/" "$RELAY_DIR/net-tune.sh" 2>/dev/null
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fi
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systemctl restart lanremote-tunnel >/dev/null 2>&1
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echo " 已把最优值写进 net-tune.sh 并重启隧道"
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grep '^MSS_VALUE=' "$RELAY_DIR/net-tune.sh" 2>/dev/null | sed 's/^/ /'
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